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Audi A4 Avant 2002 User Manual

Audi A4 Avant 2002
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91-1
Radio system
General information
CAUTION!
Before beginning repairs on the electrical
system:
Obtain anti-theft radio security code if
necessary.
Switch the ignition off.
Disconnect battery Ground (GND) strap.
On vehicles equipped with Audi Telematics
by OnStar , switch-off the emergency (back-
up) battery for the Telematic/Telephone
Control Module prior to disconnecting
vehicle battery. Use VAS 5051 Vehicle
Diagnostic, Testing and Information System
in mode "Guided Fault Finding" Page 91-
119 .
After reconnecting vehicle battery, re-code
anti-theft radio if necessary and check
operation. Also check operation of clock and
power windows according to Repair Manual
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
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Audi A4 Avant 2002 Specifications

General IconGeneral
BrandAudi
ModelA4 Avant 2002
CategoryCar Receiver
LanguageEnglish

Summary

Radio System General Information and Safety

Pre-Repair Safety Checklist

Steps before repairs: security code, battery disconnection, Telematics precautions.

Post-Repair Battery Procedures

Actions after reconnecting battery: re-coding, checking clock and windows.

Radio System Troubleshooting and Servicing

Troubleshooting Preparation Steps

Familiarize with functions, owner's manual, and wiring diagrams.

Component and Coding Guidelines

Use genuine parts, understand anti-theft coding, and refer to trim panel instructions.

Contact Corrosion Prevention Measures

Minimize corrosion using approved fasteners and proper storage of coated fasteners.

System Features and Installation

On Board Diagnostic (OBD) Capabilities

Radio units have OBD features and DTC memory for malfunction records.

Radio System Retrofitting Guidelines

Use factory wiring harnesses and adapter wires for retrofitting different radios.

CD Equipment Retrofitting Notes

Wiring sets and cables for CD changers are for original Audi CD changers only.

Transport Mode Deactivation Procedure

'Symphony' radios in Transport Mode must be deactivated before customer delivery.

Component Overviews - Concert II & Symphony II

Sedan Component Overview

Identifies locations of CD changer, speakers, and radio units in Sedan models.

Avant Component Overview

Identifies locations of CD changer, speakers, and radio units in Avant models.

Component Overviews - SDARS Systems

SDARS Sedan Component Overview

Identifies components for SDARS Sedan systems: CD changer, radio, amplifier, speakers.

SDARS Avant Component Overview

Identifies components for SDARS Avant systems: CD changer, radio, amplifier, speakers.

System Layouts and Terminal Assignments

Sedan System Layouts

Illustrates layouts for Concert II, Symphony II, and BOSE systems in Sedan models.

Avant System Layouts

Illustrates layouts for Concert II, Symphony II, and BOSE systems in Avant models.

SDARS System Layouts

Depicts layouts for SDARS and Communication systems with SDARS.

Connector Assignments

Details multi-pin connector assignments for Symphony II radio, Satellite Radio, BOSE systems, and amplifier.

Radio Unit Removal and Installation

Concert II Radio R&I

Procedures for removing and installing the Concert II radio unit.

Symphony II Radio R&I

Procedures for removing and installing the Symphony II radio unit.

CD Changer Unit Removal and Installation

CD Changer Unit -R41- R&I

Instructions for removing and installing the CD Changer Unit -R41-.

Satellite Radio Removal and Installation

Satellite Radio -R146- R&I (Sedan)

Procedures for removing and installing the Satellite Radio -R146- in Sedan models.

Satellite Radio -R146- R&I (Avant)

Procedures for removing and installing the Satellite Radio -R146- in Avant models.

Loudspeaker Removal and Installation

Door Loudspeakers R&I

Steps for removing and installing front/rear midrange and bass speakers located in doors.

Center Mid/High Range Loudspeaker R&I

Procedures for removing and installing the center mid/high range loudspeaker.

Bass Loudspeaker R&I

Procedures for removing and installing bass loudspeakers for Sedan and Avant models.

Amplifier Removal and Installation

Amplifier -R12- for Rear Loudspeakers R&I

Procedures for removing and installing the amplifier for rear loudspeakers.

Amplifier -R12- BOSE Power Amplifier R&I

Steps for removing and installing the BOSE power amplifier.

Antenna and Control Module Removal and Installation

Antenna Selection Control Module -J515- R&I

Procedures for removing and installing the antenna selection control module.

Left Antenna Module -R108- R&I

Steps for removing and installing the left antenna module.

Satellite Tuner Antenna -R172- R&I

Procedures for removing and installing the satellite tuner antenna.

Radio and CD Changer Wiring Check

Checking Wiring Integrity

Method for verifying wiring integrity between radio and CD changer.

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